The real purification of mind is in purifying it from thoughts and impressions which live in it as a germ of disease. The best way of cleansing the mind from all this is to be able to empty the mind of any thought, feeling or impression. To be pure means to be natural. The spirit in man in its natural condition is not a thought but mind, not love but heart. For as the thought is the outcome of mind, so is love the outcome of the heart.